Class PostgreSQL95Dialect

    • Constructor Detail

      • PostgreSQL95Dialect

        public PostgreSQL95Dialect()
    • Method Detail

      • getWriteLockString

        public String getWriteLockString​(int timeout)
        Description copied from class: Dialect
        Get the string to append to SELECT statements to acquire WRITE locks for this dialect. Location of the of the returned string is treated the same as getForUpdateString.
        Overrides:
        getWriteLockString in class PostgreSQL81Dialect
        Parameters:
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getWriteLockString

        public String getWriteLockString​(String aliases,
                                         int timeout)
        Description copied from class: Dialect
        Get the string to append to SELECT statements to acquire WRITE locks for this dialect given the aliases of the columns to be write locked. Location of the of the returned string is treated the same as getForUpdateString.
        Overrides:
        getWriteLockString in class PostgreSQL81Dialect
        Parameters:
        aliases - The columns to be read locked.
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getReadLockString

        public String getReadLockString​(int timeout)
        Description copied from class: Dialect
        Get the string to append to SELECT statements to acquire READ locks for this dialect. Location of the of the returned string is treated the same as getForUpdateString.
        Overrides:
        getReadLockString in class PostgreSQL81Dialect
        Parameters:
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getReadLockString

        public String getReadLockString​(String aliases,
                                        int timeout)
        Description copied from class: Dialect
        Get the string to append to SELECT statements to acquire READ locks for this dialect given the aliases of the columns to be read locked. Location of the of the returned string is treated the same as getForUpdateString.
        Overrides:
        getReadLockString in class PostgreSQL81Dialect
        Parameters:
        aliases - The columns to be read locked.
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getForUpdateSkipLockedString

        public String getForUpdateSkipLockedString()
        Description copied from class: Dialect
        Retrieves the FOR UPDATE SKIP LOCKED syntax specific to this dialect.
        Overrides:
        getForUpdateSkipLockedString in class Dialect
        Returns:
        The appropriate FOR UPDATE SKIP LOCKED clause string.
      • getForUpdateSkipLockedString

        public String getForUpdateSkipLockedString​(String aliases)
        Description copied from class: Dialect
        Get the FOR UPDATE OF column_list SKIP LOCKED fragment appropriate for this dialect given the aliases of the columns to be write locked.
        Overrides:
        getForUpdateSkipLockedString in class Dialect
        Parameters:
        aliases - The columns to be write locked.
        Returns:
        The appropriate FOR UPDATE colunm_list SKIP LOCKED clause string.
      • supportsSkipLocked

        public boolean supportsSkipLocked()
        Description copied from class: Dialect
        Does this dialect/database support SKIP_LOCKED timeout.
        Overrides:
        supportsSkipLocked in class Dialect
        Returns:
        true if SKIP_LOCKED is supported